December weather forecastSynnerål, Sweden
December
Weather in December
December, the first month of the winter in Synnerål, is also an icy month, with temperature in the range of an average high of 1.3°C (34.3°F) and an average low of -2.1°C (28.2°F).Temperature
December brings a slight decrease in temperature, down from a cold 4.7°C (40.5°F) in November to a still icy 1.3°C (34.3°F). A steady low-temperature average of -2.1°C (28.2°F) is logged in Synnerål during December, reflecting a modest dip from daytime readings.Humidity
The months with the highest humidity in Synnerål are January, February, November and December, with an average relative humidity of 90%.Rainfall
In Synnerål, during December, the rain falls for 5 days and regularly aggregates up to 14mm (0.55") of precipitation. Throughout the year, there are 102.8 rainfall days, and 186mm (7.32") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Synnerål. In Synnerål, during December, snow falls for 10.2 days and regularly aggregates up to 38mm (1.5") of snow. In Synnerål, Sweden, during the entire year, snow falls for 51.3 days and aggregates up to 192mm (7.56") of snow.Daylight
With an average of 6h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 08:27 and sunset at 15:22. On the last day of the month, sunrise is at 08:52 and sunset at 15:25 CET.
Sunshine
The month with the least sunshine in Synnerål is December, with an average of 3h of sunshine.UV index
The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 2 suggests this advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Synnerål, Sweden
- Average high temperature in December: 1.3°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-0.4°C).
- Average low temperature in December: -2.1°C
The months with the highest average low temperature are July and August (11.4°C).
The coldest month (with the lowest average low temperature) is February (-3.8°C).
Average pressure in December
Synnerål, Sweden
- Average pressure in December: 1008.7mbar
The month with the highest atmospheric pressure is April (1014.6mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).
Average wind speed in December
Synnerål, Sweden
- Average wind speed in December: 17.1km/h
The windiest month (with the highest average wind speed) is December (17.1km/h).
The calmest month (with the lowest average wind speed) is July (12.1km/h).
Average humidity in December
Synnerål, Sweden
- Average humidity in December: 90%
The months with the highest relative humidity are January, February, November and December (90%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Synnerål, Sweden
- Average rainfall in December: 14mm
The wettest month (with the highest rainfall) is July (27mm).
The driest month (with the least rainfall) is April (7mm).
Average rainfall days in December
Synnerål, Sweden
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Synnerål, Sweden
- Average snowfall in December: 38mm
The month with the highest snowfall is February (44mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Synnerål, Sweden
- Average snowfall days in December: 10.2 days
The month with the highest number of snowfall days is February (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Synnerål, Sweden
- Average daylight in December: 6h and 36min
The month with the longest days is June (Average daylight: 18h and 6min).
The month with the shortest days is December (Average daylight: 6h and 36min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in December
Synnerål, Sweden
- Average sunshine days in December: 17.7 days
The months with the most sunshine days are April and September (19.4 days).
The month with the least sunshine days is July (13.7 days).
Average UV index in December
Synnerål, Sweden
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Synnerål, Sweden
- Average cloud cover in December: 71
The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are April and June (Cloud cover 45).
Average visibility in December
Synnerål, Sweden
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, November and December (8km).
